More colours for the schematic highlighting pen?

[eecook]

Hi all!

I've been strugglin with this all morning and i cannot seem to find the way to solve this or anyone with the same problem.
I have 8 different netclasses on a design and i wanna highlight them using the highlight pen on the schematic. The problem is that the pen only offers 7 different colors, and according to altium techdocs (http://techdocs.altium.com/display/ADOH/Altium+Designer+Viewer+-+Viewing+Schematic+Documents) it seems that i'm tied to those colours only. Any ideas?

cheers!